Automatic stereotype chase lockup



May 25, 1937. c. l.. wATERsToN ET AL 2,081,345

AUTOMATIC STEREOTYPE CHASE LOOKUP I Filed NOV. l5, 1935 Patented May Z5, 1937 PATENT OFFICE* V 2,081,345 Y Vlnrroiirirrro s'rEREo'rYrE CHASE Leonor CharlesL. Waterston and George W. Holloway,

` Nashville, VTenn.

`Application November 1 3, 1935, Serial No. 49,588

5 Claims. (o1. 10i- 394) p. This application is a continuation in part of our application Serial No. 748,510, filed October 16, 1934.

They object of our invention is to providean improved and more ecient automatic stereotype chase lookup for use with the dry mat system or any other chase with printing mats which are to be locked in chase.. We` attain the object of our invention by the mechanism illustrated in the accompanying drawing, in whichi Figure l is a plan view of a portion of the frame of the mechanism, a portion being broken away `to show details of construction;

Fig. la is a planr View of the frame of the mechanism similar to Fig. l showing the position of member I after it has been operated to loosen the chase. l

Fig.`2is adetail plan View of one of the outer lookup framegnembers; A n

Fig. 3is a detail end'view `looking in the direction of the arrow; l

Fig. 4 is a detail end view looking in reverse direction jfrom Fig. 3;

Fig. 5 is a detail view lock frame member;

. F'ig. 6 is a detail end view of the member shown in Fig. 5, looking in the direction of the arrow; Fig. 7 is a detail end view of the member shown in Fig. 5 looking in the reverse direction;

Fig. A8 is an enlarged detail view of the gear mechanism;

Fig. 9 is a vertical section of Fig. 8 on the line I--1'II illustrating `the means for retaining the gearin place while permitting of the rotation of same.

Like numerals designate like parts in each of the several views.

Referring tothe accompanying drawing, our invention relates to means for adjusting and locking up page forms of type within any kind of chase which includes book, job or wet mat chases. In the accompanying drawing, the sides of a portion of the inner of the chase are indicated by the'numeral I and the ends of the chase are indicated by the numeral 2, a portion only of, the chase and form being shown to save space as explained in the brief description of Fig. 1.V We provide an inner side steel wedge bar 3 and outer side steel wedge bar 5, and inner end steel wedge bar Il and an outer end steel wedge bar 6; each of the outer steel wedge bars and Ii is provided with wedge surfaces 8 terminating in the projecting faces 'I at the outer end of the inclined surfaces and recessed faces 9 at the inner end of the inclined surfaces. We provide stop faces lil disposed in a plane at right angles to the back of the Wedge bar.

On bars 3 and 4, we provide inclined wedge I2 terminating in the outer or projecting .faces II `5 at one end and in the inner or recessed faces I3 at the other end of the inclined surfaces I2. We also provide stop faces I4 disposed in a plane at right angles to the back of the bars 3 and 4 respectively and adapted to contact with the faces 10 l0 of the bars 5 and E. Bars 5 and 6 are provided with rackv extensions I5 having gear teeth Iii. i,

We provide a gear assembly consisting of a steel case or plate 20, with a segmental guard 23, as shown in Fig. 8, the gear I8 carrying a retaining disc 2l, having a beveled edge surface, as shown in Fig. 9, rotatably .mounted in the plate and affixed to or integral with the gea-r I8 as shown, the teeth of the gear engaging the rack '-u extensions I5, as shown in Fig. l. The gear I8 L is provided with a suitable square slot 22 for a wrench.

As illustrated in Fig. 1, the teeth of gear I8 engage the teeth of the rack extensions I5 of 25 the outer wedge bars 5 and Ii. When the chase is in locked position and it is desired to loosen the chase, a wrench is applied to the square slot 22 in gear i8 and the gear is rotated in a counter clockwise direction; this moves the outer wedge bars 5 and 5 from the position shown in Fig. l to the position shown in Fig. la in the drawing, after which the members 3 and 4 move as indcated by the arrows to open or expand the chase.

To lock the chase, the gear isoperated in a clock- Wise direction and by this means the type is locked square as both the side bar 5 and the end bar 6 move at the same time and in turn operate vthe corresponding inner wedge bars 3 and 4,

whereby the type is squared up by the final squeeze.

Applicants automatic stereotype chase lookup for use with the dry mat system or any kind of chase is used with the chase exposed to'constant pressure. It is therefore important to have the gear assembly encased in one solid unit and not fastened to the chase in any way but constituting an independent-unit as illustrated in the drawing. Applicants wedges and locking gear being independent, can be removed at any time 5() when necessary. The device is an important improvement over types of gears and wedges heretofore devised which are fastened to the chase and which could not be used at the present time as a stereotype chase lookup.

In this form of lookup the result is that matter squares itself up as it is carried to the head and side of the chase at the same time, which tends to match borders more perfectly and hold the type on its feet.

The greatest feature is that all forms lock up exactly the same size, regardless of justifying the form. thereby giving all plates the same size, which means a perfect register on the press.

There can be no varying pages to hit on the bolster of the press, which means no black smudge at the bottom of the page.

The stereotypers clairn, in making casts after this lookup, they get a much better cast as there are no large pockets on this wedge to buck the mat, and the lines on the mat to trim by are accurate.

It requires only a quarter of a turn with a Wrench to look a form.

It takes only a second to unlock and lock a form for a correction.

What we claim isz- 1. In an automatic form lookup of the type described, the combination of a chase, an outer side Wedge bar, an outer end wedge bar, each of the bars having a series of Wedge surfaces along their inner edges, and having rack extensions on their ends, inner side and end Wedge bars in operative contact with the aforesaid outer side and end Wedge bars and having a series of similar Wedge surfaces, a gear having its teeth meshing with the teeth of the rack bar extensions of the outer side and end Wedge bars,

a Wrench opening in the gear, a metal case having a segmental guard, and a retaining disc carried by the gear and rotatably seated in the aforesaid metal case.

2. In an automatic stereotype chase lookup, the combination of a chase, an outer Wedge bar extending along one side of the chase, an end wedge bar extending along one end of the chase, an inner side wedge bar, an inner end Wedge bar, each of the aforesaid inner side and end Wedge bars having a series of inclined surfaces in operative contact with the aforesaid outer side and end Wedge bars, the outer Wedge bars having integral rack extensions, a gear having its teeth meshing with the teeth of the rack bar extensions of the outer side end Wedge bars, the gear being suitably shaped to be engaged by a Wrench, and an independent gear case in which the gear is rotatably seated and by which it is retained in operative engagement With the said rack extensions, and a retaining element carried by the gear.

3. In an automatic stereotype chase lookup, the combination of a chase, an outer Wedge bar extending along one side of the chase, an end Wedge bar extending along one end of the chase, an inner side wedge bar, an inner end wedge bar, each of the aforesaid side and end inner Wedge bars having a series of inclined surfaces in operative contact with the aforesaid outer side and end wedge bars, a series of outer projecting faces at the outer ends of the inclined surfaces and a series of inner recessed faces at the inner end of the inclined surfaces of each of the respective bars, the outer wedge bars having integral rack extensions, a gear having its teeth meshing with the teeth of the rack bar extensions of the outer side end Wedge bars, the gear having an opening for a Wrench, a removable square chase having a segmental guard, and means for retaining the gear on the aforesaid chase.

4. In an automatic stereotype chase lookup, the combination of a chase, an outer side Wedge bar, an outer end Wedge bar, each of the bars having a series of Wedge surfaces along their inner edges, and having rack extensions on their ends, inner side and end Wedge bars in operative contact with the aforesaid outer side and end wedge bars and having a series of similar Wedge surfaces, a gear having its teeth meshing with the teeth of the rack bar extensions of the outer side and end Wedge bars, a Wrench opening in the gear, a metal case having a segmental guard, and a retaining element integral with the gear and seated in the metal case for retaining the gear in operative engagement with the aforesaid rack extensions of the Wedge bars.

5. In an automatic stereotype chase lookup, the combination of a chase, an outer wedge bar extending along one side of the chase, an end Wedge bar extending along one end of the chase, an inner side wedge bar, an inner end wedge bar, each of the aforesaid Wedge bars having a series of inclined surfaces, the outer Wedge bars having integral rack extensions on their ends, a gear meshing with said rack extensions, the gear being suitably shaped to be engaged by a Wrench, and an independent gear case in which the gear is rotatably seated, the gear having a beveled disk extension by which it is retained in operative engagement with the said rack extensions.

CHARLES L. WA'I'ERSTON. GEORGE W. HOLLOWAY. 

